Cultivator



L. L. BEISE.

CULTIVATOR.

- I APPLICATION FILED SEPT. 2, 1919. 1,360,868. Patented Nov. 30, 1920.

' 2 SHEETS-SHEET 1.

v I VENTOR. 41 131.

ATTORNEY.

L. L. 'BEISE.

CULTIVATOR.

APPLICATION FILED SEPT-2. l9l9- 1,360,868. Patented Nov. 30,1920.

2 SHEETS-SHEET 2- A TTORNEY.

resident of LEONARD L. BEISE, OF MAPLETON, MINNESOTA.

CULTIVATOR.

Specification of Letters Patent.

Patented N 0V. 30, 1920.

Application filed September 2, 1919. Serial No. 321,157.

T 0 all whom may concern.

Be it known that I, LEONARD L. Bursa, a citizen of the United States of America, and Mapleton, in the county of Blue Earth and State of Minnesota, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

This invention relates to cultivator-s, and

parti-" arly to a machine adapted for use in cultivating cotton ground or for digging so-called quack grass.

7 An object of this invention is to provide a cultivator having soil agitating blades mounted to rotate on a horizontal plane, mechanism being provided for driving the blades in unison. I

A still further object of this invention is to provide blades of the character indicated which, owing to their peculiar construction, will be self-cleaning and dislodge deposits which may occur while in operatron.

Pi still further object of this invention is to procuce a cultivator of the chara rel. indicated having vertically mounted shafts with the cutter blades attached thereto. means being provided for driving all the vertically disposed shafts from a c atral source of power.

lVith the foregoing and other objects in view, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference wil be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views and in vhich- Figure 1 illustrates a plan view of a cultivator embodying the invention;

Fig. 2 illustrates a longitudinal sectional view; and

Fig. 3 illustrates a fied cutter.

The mechanism is mounted on any ordinary truck 5, at the rear of which there is a bracket 6 having a number of journal bearings 7, in which a shaft 8 is rotatable. The shaft has a plurality of worms 9 which engage worm wheels 10 on vertically disposed shafts 11, the said vertically disposed shafts being journaled in bearings 12.

One of the worms is driven through the plan view of a modimedium of a worm Wheel 13 which is mounted on a shaft 14, and the shaft is driven by a motor which is conventionally shown at 15 it being understood that any internal combustion, steam, or other power may be employed for driving the shaft.

The frame on which the journal bearings are mounted is adj ustable vertically through the medium of racks 15, which are engaged by pinions 16 mounted on a shaft 17 which is rotatably mounted in bearings 17 projecting from the frame. An operating lever 18 has means for-rotating the pinion, and by this means the frame carrying the shafts of the cultivating blades is elevated or lowcred.

The vertically movable frame is guided by the members 19, to which the rack is connected, and by the manipulation of the lever the blades may be allowed to descend until they operate several inches under the surface of the soil, and the depth at which these blades operate may be so regulated as to cause them to be efiicient according to the character of the soil and the character of the vegetation being worked.

As shown in the drawing, the blades 20 have their cutting edges 21 on a plane lower than the hubs 22, where they are connected to the shaft, and the purpose of this configuration for the blade is to insure dislodgment of foreign substances from the blade and make the blade particularly efficient when operating in so-callcd quack grass, which is a growth common in the northwestern part of the United States. Associated with the blades 20 are the blades .26, supported to operate in a vertical plane in front of the blades 21 and as shown,

these blades 26 are carried by the arms 27, which arms 27 are connected with the frame of the machine at the rear thereof.

The operation of the device will, of course, be apparent to one skilled in the art from an inspection of the drawing, for it will be seen that, while the parts are duplicated, the blades and the operating mechanism for each blade is the same.

In Fig. 3 I have illustrated a modified construction of a cutter, in which the disk is eliminated and a hub 28 has a plurality of laterally curved blades 24:, the cutting edges of which are on the convex curve of each blade. The blades are also curved slightly vertically, similar to the configuration of the disks, so that such construction will facilitate the dislodgment of foreign substances, such as grass.

The implement may be drawn by horses 7 or the like, and the motor will be used for operating the cultivating disks.

Of course, the construction of the frame The movable frame hascolter shafts-such as arecommonly employed on plows and cultivators, and a detailed description of them is believed unnecessary.

In dotted lines on Fig. 2 I have illustrated he adjustment of the blades from their full line positions, showing that it. is possible to lower the cutters to a depth well below the surface of the soil. 7

The racks are supported by'the axles of the rear Wheels, and the whole frame is oscillatable with respect to the front axle, so that the whole of the truck frame moves up and down with relation to the axle.

I claim:

In' a cultivator, a truck, a frame mounted to move vertically with relation to the truck, a shaft j ournaled horizontally in the frame, means for driving said shaft, shafts journaled vertically in said frame and in operative relation to the first mentioned shaft, conca'vo-convexed cutting blades supported at the lower ends of the vertical shafts, cutting blades supported in front of the first mentioned cutting blades and operating in a verticalplane, the latter cutting blades operating points in a line betweenthe adjacent-cutting edges of the first mentioned blades, and means for moving the blades into and out of operation. Y

LEONARD L. BEISE; 

